document.write( "Question 209408: how is this problem factored.\r
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document.write( " 3xy^2+11xy-20x \n" );
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Algebra.Com's Answer #158341 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! how is this problem factored. \n" ); document.write( "3xy^2+11xy-20x \n" ); document.write( "--- \n" ); document.write( "Think of two numbers whose product is 3*-120 = -60 \n" ); document.write( "and whose sum or difference is 11 \n" ); document.write( "---------------- \n" ); document.write( "The numbers are 15 and 4 \n" ); document.write( "------------------------------- \n" ); document.write( "Rewrite the problem: \n" ); document.write( "x(3y^2 + 11y - 20) \n" ); document.write( "x(3y^2 + 15y - 4y - 20) \n" ); document.write( "x(3y(y+5)-4(y+5)) \n" ); document.write( "x(y+5)(3y-4) \n" ); document.write( "====================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "Reply to stanbon@comcast.net \n" ); document.write( " |